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  4. Sectional view of alveoli with a pulmonary capillary is shown below. Identify the right match in context to the options given below: <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/b-9jl0jkyrbmsd.png />

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Q. Sectional view of alveoli with a pulmonary capillary is shown below. Identify the right match in context to the options given below:
Question

NTA AbhyasNTA Abhyas 2020Breathing and Exchange of Gases

Solution:

Basement membrane:The basement membrane is a sheet of proteins and other substances to which epithelial cells adhere and that forms a barrier between tissues.
Squamous epithelium: Alveoli is lined by a simple squamous epithelium which is thin and facilitate the process of diffusion of oxygen and $C O_{2}$ .
Endothelial cells form a one-cell thick walled layer called endothelium that lines all of blood vessels.